US1210066A

US1210066A - Insole.

Info

Publication number: US1210066A
Application number: US8379316A
Authority: US
Inventors: Shingo Hara
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-03-13
Filing date: 1916-03-13
Publication date: 1916-12-26
Anticipated expiration: 1933-12-26

Description

S. HARA.

INSOLE. APPLscATloN man MAR.13.19\6.

Patented. Dec. 26, 1916.

INVENTOR enteren srn'rns neo nena, or ons...

nissen., y

To all whom concern/J Be itlnovf'n vthat ll, Sn'INoo HARA, a suhject of the Emperor ot' Japan, residing at Oakland, inthe county of Alameda', and

State of. California, have invented new and useful Improvements 1n 'ln'soles, of which' causes of muscular rlieuniatism, soreness and lani'eness ofthe feet are directly attributable to the fact that the shoes Worn exert a pressure at points on the 'feet which by nature are not intended to support any part of the Weight. Anatomically the foot is shaped to and sci-called natural shaped insoles is to inthree points named and none other.

crease the supporting area ofthe soles of the feet, thereby violating the 'laws of nature.

ln my improved insole l have so shaped the parts as to provide for supporting engagement with the sole of the foot at tie Y leaving the material thick at those points and attenuating or thinning it at other points I obtain the object sought.

My invention is exemplified in ing description and illustrated in the panying drawings, in which v Figure 1 is a'plan vieu7 of the' underside the" followaccomot the insole. Fig. 2 is an elevation of the outside edge. Fig. 3 is an elevation of the inside edge. yFig. 4 is a cross section on line Ill-l of Fig, 1. Fig. 5 is a cross' section on line 5-5 of Fig. l. Fig. 6 is a vieWo a inocliiication.-

The insole shown is of an outline correspending to the lowermost portion of the sole'and is made of .any `'suitable material. The-hall and heel of the insole are made thicker than the other portions; the heel heing thickest at the -cent1-,l portion'lO While the edges 11 of the stimef are preferably made thin in accordancenith my plan of relieving all strains frein tl1e' fleshy ,portihns of the foot and confining the supporting' "areafgof- .the insolelto the principal bones oil the foot which, in the case of the heel, 'are Y centrally located. vThe hall of the footfbeingg Speccstion of Letters' Esteri. 15,45, E@ jlgjhig, 4' spinnen@ nea Mami; is, nus. ser'iaino.

which esteinl below the others, the thickened portion of my insole is correspondingly shaped, being longer beneath the iifth nietatarsal bone. indicated'at l2, and shorter heneath the first inetatarsal hone indicated at 13, and slightlyv thinned c'cntrall)7 st le in the shape of a forwardly directed V.'

The central portion oft the insole is gradually tapered toward the heel, at the. outer sido l5., and the inner side lo, beneath the arch of the "foot, is abruptly thinned or eut 4 away entirely, inasmuch as the arch of the foot is not intended to support any Weight.

`'lllie oe portion l? of the insole is attenuated or thinned more or less abruptly, thus relieving the strains from the overlying portions of the-foot.

ln shaping my insole l prefer to cui the materiali at the underside, so that no inequalities or ridges may come in direct contact Ywith the foot. By having the arched portion of the insole thin or cut away the pressure on the cuneifiorin bones is relieved and cause of much pain eliminated. l find the arch supports now in use put an unnatural s "ain on the structurally 'weal part of the loot and, in. addition, cut ol the'free circulation of the blood. By thinning the toe ortion oit the insole, the ed ci? the heely and the other parts et the insole beneath the 8 tion' 'with sandals Where tie strips are Worn 10Gl bctweenthe toes. f

'lhe'three points 1), l2 and 13, ontlie in- 'sole, are the only ones to have supporting en'ejegenient with the foot and thus, in effect,

a tripod support is iorined 'which corre- 105 spends substantially with the structure of the foot. Elsewhere the strains are relieved and the wearer enjoys the comfort end iree dom of ha reliootedness.

.Having thus descrihediny invention wgat 11o tizilly coinciding with the ball portion of 2. An insole having normally e flat upper surface the thickness ofthe sole increasing gradually from the` toe end of -the sole toward its ball portion and increasing abruptly at this portion to its maximum.

3. An insole having a heel portion andspaced Aportions on the opposite sides ofthe bull of like thickness, and the remaining portions of theinsole of lesser thickness and disposed normally and entirely in a flat plane with the uppersurface of the heel and ball portions whereby the remaining portions will be free to yield,

4. An insole having an uninterrupted flat upper surface and the under surface abruptly reduced at the forward end beneath the toes to form a, toe support, the under surface being further attenuated to provide the greatest thicknesses of the insole at the center of the heel and in @forwardly directed V immediately behind the abruptly reduced forward end, the heel and bell being connected by a narrow strip.

In testimony whereof I have hereunto set .my hand in the presence of two subscribing witnesses.

SHINGO HARA. Witnesses:

W.,VV. HEALEY, "L. S. TODA.